Essentially, drugs are pain killers. They may seem to avert emotional and physical pain by providing the user with a temporary and illusionary escape from or way to cope with life's realities. In fact, more problems--serious ones--are created by using and abusing drugs.

Over time, a person's ability to choose not to take drugs can become compromised--soon enough the person rationalizes the need to use consistently and will do anything to get high. They are now caught in the vicious cycle of using to alleviate pain and creating more pain by using...They now display the physiological symptoms of drug abuse. They become difficult to communicate with, are withdrawn, and begin to exhibit other strange behaviors associated with drug abuse.

In addition to the mental stress created by their unethical behavior, the abuser's body has also adapted to the presence of the drugs. They will experience an overwhelming obsession with getting and using drugs, and will do anything to avoid the pain of withdrawing from them. This is when the newly-created drug abuser begins to experience drug cravings.

They now seek drugs both for the reward of the "pleasure" they give him, and also to avoid the mental and physical horrors of withdrawal. Ironically, the abuser's ability to get "high" from the alcohol or drug gradually decreases as his body adapts to the presence of foreign chemicals. They must take more and more drugs or alcohol, not just to get an effect but often just to function at all.

At this point, the abuser is stuck in the vicious dwindling spiral of drug abuse. The drugs the addict abuses has changed them both physically and mentally. They have crossed an invisible and intangible line.

The compulsion to use drugs can take over the individual's life. Drug abuse often involves not only compulsive drug taking but also a wide range of dysfunctional behaviors that can interfere with normal functioning in the family, the workplace, and the broader community. Drug abuse also can place people at increased risk for a wide variety of other illnesses. These illnesses can be brought on by behaviors, such as poor living and health habits, that often accompany life as a drug abuser, or because of toxic effects of the drugs themselves.

Results of the 2001 National Household Survey on Drug Abuse and Addiction revealed that, while millions of Americans habitually smoke pot, drink alcohol, snort cocaine and swallow prescription drugs, too many drug users who meet the criteria for needing treatment do not recognize that they have a drug abuse problem. The figure of those "in denial" of their drug abuse is estimated at more than 4.6 million--a significantly higher number of individuals in need of professional help than had been previously thought.

Methadone wears off a long time before the drug is out of the person's system; this factor can make excessive use of the drug extremely risky.

Scientists have learned a that when someone smokes marijuana, a chemical in marijuana called THC rapidly passes from the lungs into the bloodstream, which carries the chemical to the brain and other organs throughout the body.

Opiates can be taken by mouth, smoked, or snorted, although addicts often prefer intravenous injection, which gives the strongest, quickest pleasure.

Adults aged 21 or older who had first used alcohol before age 21 were more likely than adults who had their first drink at age 21 or older to be classified with alcohol dependence or abuse (9.6 vs. 2.2 percent).

Cocaine-related deaths are often a result of cardiac arrest or seizures followed by respiratory arrest.

Rates of binge alcohol use in 2006 were 1.5 percent among 12 or 13 year olds, 8.9 percent among 14 or 15 year olds, 20.0 percent among 16 or 17 year olds, 36.2 percent among persons aged 18 to 20, and 46.1 percent among those aged 21 to 25. The rate peaked at ages 21 to 23 (49.3 percent at age 21, 48.9 percent at age 22, and 47.2 percent at age 23), then decreased beyond young adulthood from 34.2 percent of 26 to 34 year olds to 18.4 percent of persons aged 35 or older.